/*
 * Copyright (c) 1997, 2018 Oracle and/or its affiliates. All rights reserved.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v. 2.0, which is available at
 * http://www.eclipse.org/legal/epl-2.0.
 *
 * This Source Code may also be made available under the following Secondary
 * Licenses when the conditions for such availability set forth in the
 * Eclipse Public License v. 2.0 are satisfied: GNU General Public License,
 * version 2 with the GNU Classpath Exception, which is available at
 * https://www.gnu.org/software/classpath/license.html.
 *
 * SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
 */

package com.sun.faces.el;

import javax.el.ELResolver;
import javax.el.CompositeELResolver;

/**
 * Maintains an ordered composite list of child <code>ELResolver for JSF</code>.
 *
 */
public abstract class FacesCompositeELResolver extends CompositeELResolver {
    
  /**
   * <p><b>Faces</b> indicates this CompositeELResolver instance is the
   * JSF chain, specified in section 5.6.2 of the spec.</p>
   */
  public enum ELResolverChainType {
      Faces
  }

  public abstract ELResolverChainType getChainType();

  public abstract void addRootELResolver(ELResolver elResolver);

  public abstract void addPropertyELResolver(ELResolver elResolver);
}

